MerchantAdvantage is leading in Top 100K Sites and Top 1M Sites.
MerchantAdvantage has better usage coverage in more websites categories. Including Shopping, Business & Industry, Home & Garden, Health and 37 other categories.
Vertical Leap is leading in Tourism.
MerchantAdvantage is leading in most countries, including United States, Great Britain, Canada, Spain and 12 other countries.
Vertical Leap hasn't got a lead over MerchantAdvantage in any country.